1.0.0.3 false CASH AND CASH EQUIVALENTS false 1 $ false false 2 Notes to Consolidated Financial Statements 0 sre_NotesToConsolidatedFinancialStatementsAbstract sre false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false No definition available. false 3 Cash and Cash Equivalents Disclosure 1 us-gaap_CashAndCashEquivalentsPolicyTextBlock us-gaap true na duration string No definition available. false false false false false false false false false 1 false false 0 0 <div style="font-size:12pt"><p>Cash and Cash Equivalents<br />Cash equivalents are highly liquid investments with maturities of three months or less at the date of purchase. </p><p>Restricted Cash <br />Restricted cash at Sempra Energy was $35 million in 2009 and $27 million in 2008 at December 31. In 2009 and 2008, $27 million of restricted cash represents funds held in trust for construction financing of certain natural gas storage facilities of Sempra Pipelines &amp; Storage. SDG&amp;E had $8 million of restricted cash at December 31, 2009, which represents funds held by a trustee for Otay Mesa VIE to pay certain operating costs.</p></div> Cash and Cash EquivalentsCash equivalents are highly liquid investments with maturities of three months or less at the date of purchase. Restricted Cash false false No definition available. No authoritative reference available. false false 1 2 false UnKnown UnKnown UnKnown false true